Correct Answer: Baikal rocks are formed from the dissolved materials that precipitate from the solution

Solution : The correct option is Baikal rocks are formed from the dissolved materials that precipitate from the solution.

The rocks around Lake Baikal in Siberia, Russia, are primarily of igneous origin. Lake Baikal is known for its unique geological and environmental features, but the formation of rocks in the region is not primarily related to the precipitation of dissolved materials from solutions.

Correct Answer: Rock dam

Solution : correct answer is Rock dams.

Rock dams are small barriers made up of stone, sand or gravel across a drainage. Its main purpose is to reduce erosion in a drainage channel by restricting the velocity of flow in the channel.

Correct Answer: Weathering

Solution : The correct answer is Weathering

Weathering is the disintegration and deterioration of exposed rocks caused by variations in temperature, frost action, vegetation, animals, and human activities. One type of extractive metallurgy that produces a metal from its ore is smelting. Erosion is the process that wears down the earth's upper surface or nutrient layer.

Correct Answer: Metamorphic

Solution : The correct answer is Metamorphic.

Marble is a metamorphic rock that is formed when limestone is metamorphosed. Metamorphic rocks are often created by the change of igneous and sedimentary rocks under the earth's surface owing to the effects of heat and pressure.
Example of Metamorphic Rocks are- phyllite, schist, gneiss, quartzite and marble etc.

Correct Answer: Only conclusion II follows

Solution : The possible Venn diagram according to the given statements is as follows –

Let's analyze the conclusions –
Conclusion I: No shell is a rock – From the Venn diagram, it is evident that the circles representing shell and rock overlap and have some parts of their area in common. Thus, this conclusion does not follow.
Conclusion II: Some shells are rocks – From the Venn diagram, it is evident that the circles representing shells and rocks overlap and have some parts of their area in common. Thus, it can be concluded that some shells are rocks.

So, the only conclusion II follows. Hence, the fourth option is correct.

Correct Answer: wind erosion

Solution : The correct answer is wind erosion.

Mushroom rocks are formed from the erosion of the rocks. When the erosive power increases from the ground level, the resistant rocks take the shape of mushrooms with a gigantic top and a small neck. Mushroom rocks are found in the deserts. Mushroom rocks are natural formations resembling mushrooms found in places like Goblin Valley State Park, Utah, and Cappadocia, Turkey.

Correct Answer: Weathering

Solution : The correct answer is Weathering.

Weathering is the process by which rocks are broken down at the Earth's surface into sediments, clay, soils, and substances that dissolve in water. This natural phenomenon occurs due to various environmental factors, including temperature changes, water, wind and chemical reactions, leading to the gradual disintegration of rocks over time.

Correct Answer:

Solution : The correct answer is Landslide.

A landslide is a rapid and large flow of material down a slope, such as rock, earth, or debris. They might occur abruptly or gradually over long periods of time. When the force of gravity pulling the slope surpasses the power of the slope's resisting forces, the slope falls and a landslide occurs.